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LibWeb: Move mouse event and label logic from layout to painting tree

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Input events have nothing to do with layout, so let's not send them to
layout nodes.

The job of Paintable starts to become clear. It represents a paintable
item that can be rendered into the viewport, which means it can also
be targeted by the mouse cursor.
This commit is contained in:
Andreas Kling 2022-03-10 22:46:35 +01:00
parent ed84fbce47
commit cb0c5390ff
35 changed files with 560 additions and 429 deletions
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24
Userland/Libraries/LibWeb/Layout/Label.cpp
View file

@ -5,16 +5,14 @@
*/
#include <LibGUI/Event.h>
#include <LibGfx/Painter.h>
#include <LibGfx/StylePainter.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/Element.h>
#include <LibWeb/HTML/BrowsingContext.h>
#include <LibWeb/Layout/InitialContainingBlock.h>
#include <LibWeb/Layout/Label.h>
#include <LibWeb/Layout/LabelableNode.h>
#include <LibWeb/Layout/TextNode.h>
#include <LibWeb/Painting/Paintable.h>
#include <LibWeb/Painting/LabelablePaintable.h>
namespace Web::Layout {
@ -27,18 +25,18 @@ Label::~Label()
{
}
void Label::handle_mousedown_on_label(Badge<TextNode>, const Gfx::IntPoint&, unsigned button)
void Label::handle_mousedown_on_label(Badge<Painting::TextPaintable>, Gfx::IntPoint const&, unsigned button)
{
if (button != GUI::MouseButton::Primary)
return;
if (auto* control = labeled_control(); control)
control->handle_associated_label_mousedown({});
control->paintable()->handle_associated_label_mousedown({});
m_tracking_mouse = true;
}
void Label::handle_mouseup_on_label(Badge<TextNode>, const Gfx::IntPoint& position, unsigned button)
void Label::handle_mouseup_on_label(Badge<Painting::TextPaintable>, Gfx::IntPoint const& position, unsigned button)
{
if (!m_tracking_mouse || button != GUI::MouseButton::Primary)
return;
@ -51,13 +49,13 @@ void Label::handle_mouseup_on_label(Badge<TextNode>, const Gfx::IntPoint& positi
bool is_inside_label = enclosing_int_rect(paint_box()->absolute_rect()).contains(position);
if (is_inside_control || is_inside_label)
control->handle_associated_label_mouseup({});
control->paintable()->handle_associated_label_mouseup({});
}
m_tracking_mouse = false;
}
void Label::handle_mousemove_on_label(Badge<TextNode>, const Gfx::IntPoint& position, unsigned)
void Label::handle_mousemove_on_label(Badge<Painting::TextPaintable>, Gfx::IntPoint const& position, unsigned)
{
if (!m_tracking_mouse)
return;
@ -66,18 +64,18 @@ void Label::handle_mousemove_on_label(Badge<TextNode>, const Gfx::IntPoint& posi
bool is_inside_control = enclosing_int_rect(control->paint_box()->absolute_rect()).contains(position);
bool is_inside_label = enclosing_int_rect(paint_box()->absolute_rect()).contains(position);
control->handle_associated_label_mousemove({}, is_inside_control || is_inside_label);
control->paintable()->handle_associated_label_mousemove({}, is_inside_control || is_inside_label);
}
}
bool Label::is_inside_associated_label(LabelableNode& control, const Gfx::IntPoint& position)
bool Label::is_inside_associated_label(LabelableNode const& control, const Gfx::IntPoint& position)
{
if (auto* label = label_for_control_node(control); label)
return enclosing_int_rect(label->paint_box()->absolute_rect()).contains(position);
return false;
}
bool Label::is_associated_label_hovered(LabelableNode& control)
bool Label::is_associated_label_hovered(LabelableNode const& control)
{
if (auto* label = label_for_control_node(control); label) {
if (label->document().hovered_node() == &label->dom_node())
@ -91,7 +89,7 @@ bool Label::is_associated_label_hovered(LabelableNode& control)
}
// https://html.spec.whatwg.org/multipage/forms.html#labeled-control
Label* Label::label_for_control_node(LabelableNode& control)
Label const* Label::label_for_control_node(LabelableNode const& control)
{
if (!control.document().layout_node())
return nullptr;
@ -102,7 +100,7 @@ Label* Label::label_for_control_node(LabelableNode& control)
// whose ID is equal to the value of the for attribute, and the first such element in tree order is
// a labelable element, then that element is the label element's labeled control.
if (auto id = control.dom_node().attribute(HTML::AttributeNames::id); !id.is_empty()) {
Label* label = nullptr;
Label const* label = nullptr;
control.document().layout_node()->for_each_in_inclusive_subtree_of_type<Label>([&](auto& node) {
if (node.dom_node().for_() == id) {